A5011149234- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Advancements in Battery Materials
- Prosthetics and Rehabilitation Robotics
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Diabetic Foot Ulcer Assessment and Management
- Extraction and Separation Processes
- Catalysis and Oxidation Reactions
- Gait Recognition and Analysis
- Magnetic and transport properties of perovskites and related materials
- Fuel Cells and Related Materials
- Advanced Battery Materials and Technologies
- Electron and X-Ray Spectroscopy Techniques
- Muscle activation and electromyography studies
- Balance, Gait, and Falls Prevention
- Corrosion Behavior and Inhibition
- Electrochemical sensors and biosensors
- Stroke Rehabilitation and Recovery
- Semiconductor materials and interfaces
- Advanced materials and composites
- Diamond and Carbon-based Materials Research
- Cerebral Palsy and Movement Disorders
- Chemical Looping and Thermochemical Processes
- Advanced battery technologies research
Thailand National Metal and Materials Technology Center
2009-2025
National Science and Technology Development Agency
2018-2024
Northwestern University
2006-2009
Functional Coating Technology (United States)
2009
Materials Science & Engineering
2007
Electrolysis was carried out at 700−800 °C using solid oxide electrochemical cells with H2O−CO2−H2 mixtures the Ni-YSZ cathode and air LSCF-GDC anode. (YSZ = 8 mol %, Y2O3-stabilized ZrO2, GDC Ce0.9Gd0.1O1.95, LSCF La0.6Sr0.4Co0.2Fe0.8O3). The cell electrolysis performance decreased only slightly for H2O−CO2 compared to H2O much better than pure CO2 electrolysis. Mass spectrometer measurements showed increasing consumption of production H2 CO current density. Electrolyzers operated on 25%...
This paper compares the effects of Ni and Ru dopants in lanthanum chromite anodes by correlating structural characterization electrochemical measurements solid oxide fuel cells (SOFCs). Transmission electron microscope observations showed that nanoclusters or metal precipitated onto surfaces, respectively, after exposure to hydrogen at . were typically diameter immediately reduction coarsened over In contrast, cluster size was stable , density times larger. SOFC tests done with doped on...
Lateral resistance walk is an effective way to strengthen the abductor muscles of hip. Accurate lateral walking gait recognition prerequisite for exoskeletons be applied exercises. This paper proposes a denoising autoencoder-LSTM (DAE-LSTM) algorithm recognition. Nine sets IMU data at three speeds and strides ten subjects were collected. Four phases narrow double support (NDS), guided foot swing (GFS), wide (WDS) following leg (FLS) recognized. The performance random forest (RF), vector...
This paper describes a new method for improving the performance of oxide anodes by precipitating metal nano- clusters on surfaces during initial stages SOFC operation, without additional processing steps. Transmission electron microscope and x-ray photoelectron spectroscopy observations showed that nano-clusters Ni or Ru precipitated onto lanthanum chromite (La0.8Sr0.2Cr1-yXyO3-d, X = Ni, Ru) surfaces, respectively, after exposure to hydrogen at 800{degree sign}C. While coarsened over ~300 h...
Two Ag–Cu–Ti brazing alloy compositions were studied as gas seals for solid oxide fuel cells (SOFCs). Yttria-stabilized zirconia pellets bonded using Ag–35.25Cu–1.75Ti (Cusil-ABA) or Ag–20.1Cu–1.0Ti (average composition; Ag-Cusil). Both as-brazed filler metals contained metallic Ag and Cu phases, along with continuous titanium layers at the metal-zirconia interfaces. The brazed joints then aged 700°C up to 100h in air while separating H2 atmospheres. After annealing 700°C, degradation...
Solid oxide fuel cell (SOFC) electrodes typically consist of contiguous electronically and ionically conducting solid phases in an interconnected porous structure. Quantitatively analyzing this microstructure remains a key challenge connecting materials processing with electrode performance. This paper will describe the application dual-beam focused ion beam - scanning electron microscopy for three-dimensional reconstruction Ni-YSZ cermet anodes, LSM-YSZ cathodes, (La,Sr)CoO3 cathodes....
Journal Article Electron Microscopy Study of Novel Ru Doped La0.8Sr0.2CrO3 as Anode Materials for Solid Oxide Fuel Cells (SOFCs) Get access Y Wang, Wang Northwestern University Search other works by this author on: Oxford Academic Google Scholar BD Madsen, Madsen W Kobsiriphat, Kobsiriphat SA Barnett, Barnett LD Marks and Microanalysis, Volume 13, Issue S02, 1 August 2007, Pages 100–101, https://doi.org/10.1017/S1431927607075125 Published: 05 2007
Journal Article Three-Dimensional Analysis of Solid Oxide Fuel Cells, Using Focused Ion Beam – Scanning Electron Microscopy Get access S Barnett, Barnett Northwestern University Search for other works by this author on: Oxford Academic Google Scholar J Wilson, Wilson W Kobsiriphat, Kobsiriphat HY Chen, Chen Michigan R Mendoza, Mendoza JM Hiller, Hiller Argonne National Laboratory D Miller, Miller K Thornton, Thornton PW Voorhees, Voorhees Adler Washington and Microanalysis, Volume 13, Issue...
Lateral walking gait phase recognition and prediction are the premise of hip exoskeleton application in lateral resistance walk exercise. In this work, we presented a fusion network with stacked denoise autoencoder meta learning (SDA-NN-ML) to recognize predict percentage from IMU signals. Experiments were conducted detect four phases their 10 healthy subjects across different speeds. The performance SDA-NN-ML other widely used algorithms including Support Vector Machine (SVM), Adaptive...
The accurate detection of lateral walking gait phases is essential for the effective implementation hip exoskeleton systems in resistance exercises. However, limitations hardware, such as memory and computing power, microcontrollers wearable devices, significantly impact size training speed phase model, thus affecting system. This study proposes a data optimization algorithm that utilizes K-means clustering combined with commonly used machine learning algorithms, including Random Forests...
Ultra-thin carbon overcoats deposited on Al2O3-TiC (AlTiC) substrates were characterized using electrochemical impedance spectroscopy. By depositing diamond-like (DLC) directly AlTiC, the polarization resistance increased to 10^7 ohm-cm2 from ~10^5 for bare AlTiC. Two adhesion layer materials studied: Si and Si3N4. The of DLC/Si3N4 films was 100 times higher than that DLC/Si. impedance, wear magnetic test results indicated Si3N4 is a more suitable seed material. Comparing with same DLC...
Abstract not Available.
INTRODUCTION Lithium metal othosilicate (Li 2 M SiO 4 , where = Fe, Mn, Co or Ni) has currently attracted a good deal of interest as high voltage positive electrode material due to its theoretical charge and discharge capacities 330 mAh g -1 up 5.1 V. Such capacity arises from the ability extract two lithium ions per one transition metal. However, this class been reported exhibit low conductivity poor cycling performance structural instabilities with orthorhombic monoclinic phase during...